Surgical Reconstruction Of Non Union Patella And Neglected Patellar Tendon Rupture With Semitendinosus Graft – A Prospective Study
Journal Title: International Journal of Orthopaedics Traumatology & Surgical Sciences - Year 2016, Vol 2, Issue 2
Abstract
Background: Non-union of patella and neglected patellar tendon rupture cause significant disability due to disruption in extensor mechanism of knee. Reconstruction attempted months or years later is prone to unsatisfactory results due to difficulty in overcoming adhesions and contractures. Though a variety of techniques are described in literature, surgical reconstruction using semitendinosus free graft is a promising new technique. The purpose of this study is to prove the efficacy of semitendinosus graft for old patellar tendon rupture and patellar non-union. Materials and methods: 5 cases of non-union patella and 3 cases of neglected patellar tendon rupture treated by semitendinosus free graft were included in this prospective study. Post-operatively, the functional outcome was assessed using Knee Scoring System. Results: The mean age of patients was 41.8 years (range 29-55 years). All eight patients were males. The average duration after trauma was 13.8 months (range 3.5 months to 5 years). Pre-operatively, the average extensor lag was 116.33◦, average range of motion was 0-121.25◦ and extensor mechanism gap was 9.93 cm. The average duration of follow-up was 10.5 months (range 8-15 months). In all 8 patients, semitendinosus graft was used to bridge the gap. The average length of the graft used in our study was 16.12 cm. At the final follow-up at 1 year, average extensor lag was 13.75◦, the average range of motion was 0- 110◦ and the residual gap was 4.93 cm in the eight patients. As per the knee functional score, good results were seen in 7 patients (87.5%) and fair result in one patient (12.5%). Conclusion: Surgical reconstruction of non-union patella and neglected patellar tendon rupture with semitendinosus graft is an effective method of treatment as gauged by post-operative outcome measures in terms of good range of motion of knee and minimal extensor lag.
Authors and Affiliations
Elango M, Pragash M, Latchoumibady K
Keywords
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